Android里五种 Toast方式
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Toast用于向用户显示一些帮助/提示。下面我做了5中效果,来说明Toast的强大,定义一个属于你自己的Toast。1.默认效果
Toast.makeText(getApplicationContext(), "默认Toast样式", Toast.LENGTH_SHORT).show();
2.自定义显示位置效果
toast = Toast.makeText(getApplicationContext(), "自定义位置Toast", Toast.LENGTH_LONG); toast.setGravity(Gravity.CENTER, 0, 0); toast.show();
3.带图片效果
toast = Toast.makeText(getApplicationContext(), "带图片的Toast", Toast.LENGTH_LONG); toast.setGravity(Gravity.CENTER, 0, 0); LinearLayout toastView = (LinearLayout) toast.getView(); ImageView imageCodeProject = new ImageView(getApplicationContext()); imageCodeProject.setImageResource(R.drawable.icon); toastView.addView(imageCodeProject, 0); toast.show();
4.完全自定义效果
LayoutInflater inflater = getLayoutInflater(); View layout = inflater.inflate(R.layout.custom, (ViewGroup) findViewById(R.id.llToast)); ImageView image = (ImageView) layout.findViewById(R.id.tvImageToast); image.setImageResource(R.drawable.icon); TextView title = (TextView) layout.findViewById(R.id.tvTitleToast); title.setText("Attention"); TextView text = (TextView) layout.findViewById(R.id.tvTextToast); text.setText("完全自定义Toast"); toast = new Toast(getApplicationContext()); toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40); toast.setDuration(Toast.LENGTH_LONG); toast.setView(layout); toast.show();
5.其他线程
new Thread(new Runnable() { public void run() { showToast(); } }).start();
完整代码
package com.wjq.toast; import android。app。Activity; import android。os。Bundle; import android。os。Handler; import android。view。Gravity; import android。view。LayoutInflater; import android。view。View; import android。view。ViewGroup; import android。view。View。OnClickListener; import android。widget。ImageView; import android。widget。LinearLayout; import android。widget。TextView; import android。widget。Toast; public class Main extends Activity implements OnClickListener { Handler handler = new Handler(); @Override public void onCreate(Bundle savedInstanceState) { super。onCreate(savedInstanceState); setContentView(R。layout。main); findViewById(R。id。btnSimpleToast)。setOnClickListener(this); findViewById(R。id。btnSimpleToastWithCustomPosition)。setOnClickListener( this); findViewById(R。id。btnSimpleToastWithImage)。setOnClickListener(this); findViewById(R。id。btnCustomToast)。setOnClickListener(this); findViewById(R。id。btnRunToastFromOtherThread)。setOnClickListener(this); } public void showToast() { handler。post(new Runnable() { @Override public void run() { Toast。makeText(getApplicationContext(), "我来自其他线程!", Toast。LENGTH_SHORT)。show(); } }); } @Override public void onClick(View v) { Toast toast = null; switch (v。getId()) { case R。id。btnSimpleToast: Toast。makeText(getApplicationContext(), "默认Toast样式", Toast。LENGTH_SHORT)。show(); break; case R。id。btnSimpleToastWithCustomPosition: toast = Toast。makeText(getApplicationContext(), "自定义位置Toast", Toast。LENGTH_LONG); toast。setGravity(Gravity。CENTER, 0, 0); toast。show(); break; case R。id。btnSimpleToastWithImage: toast = Toast。makeText(getApplicationContext(), "带图片的Toast", Toast。LENGTH_LONG); toast。setGravity(Gravity。CENTER, 0, 0); LinearLayout toastView = (LinearLayout) toast。getView(); ImageView imageCodeProject = new ImageView(getApplicationContext()); imageCodeProject。setImageResource(R。drawable。icon); toastView。addView(imageCodeProject, 0); toast。show(); break; case R。id。btnCustomToast: LayoutInflater inflater = getLayoutInflater(); View layout = inflater。inflate(R。layout。custom, (ViewGroup) findViewById(R。id。llToast)); ImageView image = (ImageView) layout 。findViewById(R。id。tvImageToast); image。setImageResource(R。drawable。icon); TextView title = (TextView) layout。findViewById(R。id。tvTitleToast); title。setText("Attention"); TextView text = (TextView) layout。findViewById(R。id。tvTextToast); text。setText("完全自定义Toast"); toast = new Toast(getApplicationContext()); toast。setGravity(Gravity。RIGHT | Gravity。TOP, 12, 40); toast。setDuration(Toast。LENGTH_LONG); toast。setView(layout); toast。show(); break; case R。id。btnRunToastFromOtherThread: new Thread(new Runnable() { public void run() { showToast(); } })。start(); break; } } }
2.main,xml
<?xml version="1。0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas。android。com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dip" android:gravity="center"> <Button android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@+id/btnSimpleToast" android:text="默认"></Button> <Button android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="自定义显示位置" android:id="@+id/btnSimpleToastWithCustomPosition"></Button> <Button android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@+id/btnSimpleToastWithImage" android:text="带图片"></Button> <Button android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="完全自定义" android:id="@+id/btnCustomToast"></Button> <Button android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="其他线程" android:id="@+id/btnRunToastFromOtherThread"></Button> </LinearLayout>
3.custom.xml
<?xml version="1。0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas。android。com/apk/res/android" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="#ffffffff" android:orientation="vertical" android:id="@+id/llToast" > <TextView android:layout_height="wrap_content" android:layout_margin="1dip" android:textColor="#ffffffff" android:layout_width="fill_parent" android:gravity="center" android:background="#bb000000" android:id="@+id/tvTitleToast" /> <LinearLayout android:layout_height="wrap_content" android:orientation="vertical" android:id="@+id/llToastContent" android:layout_marginLeft="1dip" android:layout_marginRight="1dip" android:layout_marginBottom="1dip" android:layout_width="wrap_content" android:padding="15dip" android:background="#44000000" > <ImageView android:layout_height="wrap_content" android:layout_gravity="center" android:layout_width="wrap_content" android:id="@+id/tvImageToast" /> <TextView android:layout_height="wrap_content" android:paddingRight="10dip" android:paddingLeft="10dip" android:layout_width="wrap_content" android:gravity="center" android:textColor="#ff000000" android:id="@+id/tvTextToast" /> </LinearLayout> </LinearLayout>
原文链接:http://www.eoeandroid.com/thread-187288-1-1.html
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