Android Api Demos登頂之路（二十三）SoftInputModes

這個demo示範了當系統的軟鍵盤打開時，window布局的調整方式 可以通過設定WindowManager.LayoutParams參數來實作不同的調整模式

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="5dp" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:text="@string/hello_world"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <LinearLayout
        android:paddingTop="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium" 
            android:text="Resize mode:"/>
        <Spinner 
            android:id="@+id/resizeMode"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
    </LinearLayout>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:text="This is the part of application's UI that can resize to adjust for the IME"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:background="#ff0000" />
    <EditText 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:background="#00ff00"
        android:text="Text editor.Tap to show the IME,which will cause to this window to resize as requested"/>

</LinearLayout>
           

MainActivity

public class MainActivity extends Activity {
    private Spinner mResizeMode;
    private CharSequence[] mModeLabels = new CharSequence[] { "Unspecified",
            "Resize", "Pan", "Nothing" };
    private int[] mResizeModes = new int[] {
            // 未指定鍵盤的顯示模式，系統根據内容自行從resize和pan兩種模式中選擇一種
            // 或是繼續使用上次的顯示模式
            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED,
            // 整個Layout重新編排,重新配置設定多餘空間
            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE,
            // 把整個Layout頂上去露出獲得焦點的EditText,確定輸入焦點可見
            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN,
            // 不調整(輸入法完全直接覆寫住）
            WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mResizeMode = (Spinner) findViewById(R.id.resizeMode);
        ArrayAdapter<CharSequence> adapter = new ArrayAdapter<CharSequence>(
                this, android.R.layout.simple_spinner_item, mModeLabels);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        mResizeMode.setAdapter(adapter);
        mResizeMode.setSelection();
        mResizeMode.setOnItemSelectedListener(new OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view,
                    int position, long id) {
                getWindow().setSoftInputMode(mResizeModes[position]);
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {
                getWindow().setSoftInputMode(mResizeModes[]);
            }
        });
    }

}